|
|
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
![A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street](https://biology-forums.com/gallery/47/medium_6_24_08_15_12_36_55_224282222.jpeg)
![This debutante is making her formal entrance into society, announcing her eligibility for marriage. ...](https://biology-forums.com/gallery/27/medium_660366_13_04_17_8_55_30_277341891.png)
![A society’s dominant ideologies are reinforced throughout the society, including its literature. ...](https://biology-forums.com/gallery/27/medium_660366_13_04_17_9_02_43_2774779.png)